最多可做多少面小三角旗

  • 时间:2020-05-16 11:04:24
  • 分类:数学世界
  • 阅读:158 次

数学题:一块长26dm,宽20dm的长方形红布,裁剪成直角边都是2dm的等腰直角三角形红旗,最多可做多少面小三角旗?

数学题解答

Melody解答:

大长方形:26*20=520平方分米

正方形:2*2=4平方分米;

520÷4=130(个);

每一个小正方形都可以分成两个边长为2分米的等边直角三角形:

130*2=260(个)

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